/** * FreeRDP: A Remote Desktop Protocol Implementation * RDP Core * * Copyright 2011 Marc-Andre Moreau * Copyright 2014 DI (FH) Martin Haimberger * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #ifndef FREERDP_LIB_CORE_RDP_H #define FREERDP_LIB_CORE_RDP_H #ifdef HAVE_CONFIG_H #include "config.h" #endif #include "nla.h" #include "mcs.h" #include "tpkt.h" #include "bulk.h" #include "fastpath.h" #include "tpdu.h" #include "nego.h" #include "input.h" #include "update.h" #include "license.h" #include "errinfo.h" #include "autodetect.h" #include "heartbeat.h" #include "multitransport.h" #include "security.h" #include "transport.h" #include "connection.h" #include "redirection.h" #include "capabilities.h" #include "channels.h" #include #include #include #include #include #include /* Security Header Flags */ #define SEC_EXCHANGE_PKT 0x0001 #define SEC_TRANSPORT_REQ 0x0002 #define SEC_TRANSPORT_RSP 0x0004 #define SEC_ENCRYPT 0x0008 #define SEC_RESET_SEQNO 0x0010 #define SEC_IGNORE_SEQNO 0x0020 #define SEC_INFO_PKT 0x0040 #define SEC_LICENSE_PKT 0x0080 #define SEC_LICENSE_ENCRYPT_CS 0x0200 #define SEC_LICENSE_ENCRYPT_SC 0x0200 #define SEC_REDIRECTION_PKT 0x0400 #define SEC_SECURE_CHECKSUM 0x0800 #define SEC_AUTODETECT_REQ 0x1000 #define SEC_AUTODETECT_RSP 0x2000 #define SEC_HEARTBEAT 0x4000 #define SEC_FLAGSHI_VALID 0x8000 #define SEC_PKT_CS_MASK (SEC_EXCHANGE_PKT | SEC_INFO_PKT) #define SEC_PKT_SC_MASK (SEC_LICENSE_PKT | SEC_REDIRECTION_PKT) #define SEC_PKT_MASK (SEC_PKT_CS_MASK | SEC_PKT_SC_MASK) #define RDP_SECURITY_HEADER_LENGTH 4 #define RDP_SHARE_CONTROL_HEADER_LENGTH 6 #define RDP_SHARE_DATA_HEADER_LENGTH 12 #define RDP_PACKET_HEADER_MAX_LENGTH (TPDU_DATA_LENGTH + MCS_SEND_DATA_HEADER_MAX_LENGTH) #define PDU_TYPE_DEMAND_ACTIVE 0x1 #define PDU_TYPE_CONFIRM_ACTIVE 0x3 #define PDU_TYPE_DEACTIVATE_ALL 0x6 #define PDU_TYPE_DATA 0x7 #define PDU_TYPE_SERVER_REDIRECTION 0xA #define PDU_TYPE_FLOW_TEST 0x41 #define PDU_TYPE_FLOW_RESPONSE 0x42 #define PDU_TYPE_FLOW_STOP 0x43 #define FINALIZE_SC_SYNCHRONIZE_PDU 0x01 #define FINALIZE_SC_CONTROL_COOPERATE_PDU 0x02 #define FINALIZE_SC_CONTROL_GRANTED_PDU 0x04 #define FINALIZE_SC_FONT_MAP_PDU 0x08 #define FINALIZE_SC_COMPLETE 0x0F /* Data PDU Types */ #define DATA_PDU_TYPE_UPDATE 0x02 #define DATA_PDU_TYPE_CONTROL 0x14 #define DATA_PDU_TYPE_POINTER 0x1B #define DATA_PDU_TYPE_INPUT 0x1C #define DATA_PDU_TYPE_SYNCHRONIZE 0x1F #define DATA_PDU_TYPE_REFRESH_RECT 0x21 #define DATA_PDU_TYPE_PLAY_SOUND 0x22 #define DATA_PDU_TYPE_SUPPRESS_OUTPUT 0x23 #define DATA_PDU_TYPE_SHUTDOWN_REQUEST 0x24 #define DATA_PDU_TYPE_SHUTDOWN_DENIED 0x25 #define DATA_PDU_TYPE_SAVE_SESSION_INFO 0x26 #define DATA_PDU_TYPE_FONT_LIST 0x27 #define DATA_PDU_TYPE_FONT_MAP 0x28 #define DATA_PDU_TYPE_SET_KEYBOARD_INDICATORS 0x29 #define DATA_PDU_TYPE_BITMAP_CACHE_PERSISTENT_LIST 0x2B #define DATA_PDU_TYPE_BITMAP_CACHE_ERROR 0x2C #define DATA_PDU_TYPE_SET_KEYBOARD_IME_STATUS 0x2D #define DATA_PDU_TYPE_OFFSCREEN_CACHE_ERROR 0x2E #define DATA_PDU_TYPE_SET_ERROR_INFO 0x2F #define DATA_PDU_TYPE_DRAW_NINEGRID_ERROR 0x30 #define DATA_PDU_TYPE_DRAW_GDIPLUS_ERROR 0x31 #define DATA_PDU_TYPE_ARC_STATUS 0x32 #define DATA_PDU_TYPE_STATUS_INFO 0x36 #define DATA_PDU_TYPE_MONITOR_LAYOUT 0x37 #define DATA_PDU_TYPE_FRAME_ACKNOWLEDGE 0x38 /* Stream Identifiers */ #define STREAM_UNDEFINED 0x00 #define STREAM_LOW 0x01 #define STREAM_MED 0x02 #define STREAM_HI 0x04 struct rdp_rdp { CONNECTION_STATE state; freerdp* instance; rdpContext* context; rdpNla* nla; rdpMcs* mcs; rdpNego* nego; rdpBulk* bulk; rdpInput* input; rdpUpdate* update; rdpFastPath* fastpath; rdpLicense* license; rdpRedirection* redirection; rdpSettings* settings; rdpTransport* transport; rdpAutoDetect* autodetect; rdpHeartbeat* heartbeat; rdpMultitransport* multitransport; WINPR_RC4_CTX* rc4_decrypt_key; int decrypt_use_count; int decrypt_checksum_use_count; WINPR_RC4_CTX* rc4_encrypt_key; int encrypt_use_count; int encrypt_checksum_use_count; WINPR_CIPHER_CTX* fips_encrypt; WINPR_CIPHER_CTX* fips_decrypt; UINT32 sec_flags; BOOL do_crypt; BOOL do_crypt_license; BOOL do_secure_checksum; BYTE sign_key[16]; BYTE decrypt_key[16]; BYTE encrypt_key[16]; BYTE decrypt_update_key[16]; BYTE encrypt_update_key[16]; int rc4_key_len; BYTE fips_sign_key[20]; BYTE fips_encrypt_key[24]; BYTE fips_decrypt_key[24]; UINT32 errorInfo; UINT32 finalize_sc_pdus; BOOL resendFocus; BOOL deactivation_reactivation; BOOL AwaitCapabilities; UINT64 inBytes; UINT64 inPackets; UINT64 outBytes; UINT64 outPackets; CRITICAL_SECTION critical; }; FREERDP_LOCAL BOOL rdp_read_security_header(wStream* s, UINT16* flags, UINT16* length); FREERDP_LOCAL void rdp_write_security_header(wStream* s, UINT16 flags); FREERDP_LOCAL BOOL rdp_read_share_control_header(wStream* s, UINT16* tpktLength, UINT16* remainingLength, UINT16* type, UINT16* channel_id); FREERDP_LOCAL BOOL rdp_read_share_data_header(wStream* s, UINT16* length, BYTE* type, UINT32* share_id, BYTE* compressed_type, UINT16* compressed_len); FREERDP_LOCAL wStream* rdp_send_stream_init(rdpRdp* rdp); FREERDP_LOCAL wStream* rdp_send_stream_pdu_init(rdpRdp* rdp); FREERDP_LOCAL BOOL rdp_read_header(rdpRdp* rdp, wStream* s, UINT16* length, UINT16* channel_id); FREERDP_LOCAL void rdp_write_header(rdpRdp* rdp, wStream* s, UINT16 length, UINT16 channel_id); FREERDP_LOCAL BOOL rdp_send_pdu(rdpRdp* rdp, wStream* s, UINT16 type, UINT16 channel_id); FREERDP_LOCAL wStream* rdp_data_pdu_init(rdpRdp* rdp); FREERDP_LOCAL BOOL rdp_send_data_pdu(rdpRdp* rdp, wStream* s, BYTE type, UINT16 channel_id); FREERDP_LOCAL int rdp_recv_data_pdu(rdpRdp* rdp, wStream* s); FREERDP_LOCAL BOOL rdp_send(rdpRdp* rdp, wStream* s, UINT16 channelId); FREERDP_LOCAL BOOL rdp_send_channel_data(rdpRdp* rdp, UINT16 channelId, const BYTE* data, size_t size); FREERDP_LOCAL wStream* rdp_message_channel_pdu_init(rdpRdp* rdp); FREERDP_LOCAL BOOL rdp_send_message_channel_pdu(rdpRdp* rdp, wStream* s, UINT16 sec_flags); FREERDP_LOCAL int rdp_recv_message_channel_pdu(rdpRdp* rdp, wStream* s, UINT16 securityFlags); FREERDP_LOCAL int rdp_recv_out_of_sequence_pdu(rdpRdp* rdp, wStream* s); FREERDP_LOCAL int rdp_recv_callback(rdpTransport* transport, wStream* s, void* extra); FREERDP_LOCAL int rdp_check_fds(rdpRdp* rdp); FREERDP_LOCAL rdpRdp* rdp_new(rdpContext* context); FREERDP_LOCAL void rdp_reset(rdpRdp* rdp); FREERDP_LOCAL void rdp_free(rdpRdp* rdp); #define RDP_TAG FREERDP_TAG("core.rdp") #ifdef WITH_DEBUG_RDP #define DEBUG_RDP(...) WLog_DBG(RDP_TAG, __VA_ARGS__) #else #define DEBUG_RDP(...) \ do \ { \ } while (0) #endif const char* data_pdu_type_to_string(UINT8 type); const char* pdu_type_to_str(UINT16 pduType); BOOL rdp_decrypt(rdpRdp* rdp, wStream* s, UINT16* pLength, UINT16 securityFlags); BOOL rdp_set_error_info(rdpRdp* rdp, UINT32 errorInfo); BOOL rdp_send_error_info(rdpRdp* rdp); void rdp_free_rc4_encrypt_keys(rdpRdp* rdp); BOOL rdp_reset_rc4_encrypt_keys(rdpRdp* rdp); void rdp_free_rc4_decrypt_keys(rdpRdp* rdp); BOOL rdp_reset_rc4_decrypt_keys(rdpRdp* rdp); #endif /* FREERDP_LIB_CORE_RDP_H */